Final Endodontic Irrigation with 70% Ethanol Enhanced Calcium Hydroxide Removal from the Apical Third
| Autor: | Adriany Dias Fernandes, Luiz Carlos de Lima Dias-Junior, Roberta Fonseca de Castro, Marcella Yasmin Reis Guerreiro, Emmanuel João Nogueira Leal Silva, Juliana Melo da Silva Brandão |
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| Rok vydání: | 2021 |
| Předmět: |
0301 basic medicine
Sodium Hypochlorite medicine.medical_treatment Root canal Sodium Lentulo spiral chemistry.chemical_element Calcium Hydroxide 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine medicine Therapeutic Irrigation General Dentistry Saline Phosphoric acid Edetic Acid Calcium hydroxide Ethanol Root Canal Irrigants Chemistry 030206 dentistry 030104 developmental biology Dentinal Tubule medicine.anatomical_structure Sodium hypochlorite Microscopy Electron Scanning Dental Pulp Cavity Root Canal Preparation Nuclear chemistry |
| Zdroj: | Journal of Endodontics. 47:105-111 |
| ISSN: | 0099-2399 |
| DOI: | 10.1016/j.joen.2020.09.017 |
| Popis: | The purpose of this study was to evaluate the cleanliness of root canal walls and dentinal tubules after attempting to remove the calcium hydroxide dressing with different irrigant solutions and the use of nonactivated irrigation or passive ultrasonic irrigation (PUI).After root canal instrumentation, 80 single-rooted teeth were filled with calcium hydroxide mixed with propylene glycol and 0.1% rhodamine B dye and inserted into canals with a Lentulo spiral. The calcium hydroxide dressing was initially removed with 10 mL saline solution and reinstrumentation with the master apical file. Then, the samples were randomly assigned into 8 experimental groups (n = 10) according to the irrigant solution with or without PUI: 2.5% sodium hypochlorite, 17% ethylenediaminetetraacetic acid + 1.25% sodium lauryl ether sulfate (EDTA-T), 37% phosphoric acid, or 70% ethanol. A final flush with 5 mL saline solution was performed. The percentage of clean root canal walls and the depth of clean dentinal tubules were measured with images of confocal laser scanning microscopy. The groups were compared using the 2-way analysis of variance test with the Bonferroni post hoc test for depth analysis and the Kruskal-Wallis with Dunn post hoc test for the perimeter analysis.Irrigation with 70% ethanol presented a significantly higher percentage of clean root canal walls and a higher depth of clean dentinal tubules when compared with irrigation with 2.5% sodium hypochlorite and 17% EDTA-T for both irrigation methods (P.05). No differences were observed between nonactivated irrigation or PUI protocols (P.05).Seventy percent ethanol enhanced calcium hydroxide removal from the apical root third compared with 2.5% sodium hypochlorite or 17% EDTA-T. |
| Databáze: | OpenAIRE |
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